1005556010078 has 16 divisors (see below), whose sum is σ = 1606291112880. Its totient is φ = 470467549056.

The previous prime is 1005556010077. The next prime is 1005556010159. The reversal of 1005556010078 is 8700106555001.

It is a happy number.

It is a super-2 number, since 2×1005556010078² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005556010077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85471508 + ... + 85483271.

It is an arithmetic number, because the mean of its divisors is an integer number (100393194555).

Almost surely, 2^{1005556010078} is an apocalyptic number.

1005556010078 is a deficient number, since it is larger than the sum of its proper divisors (600735102802).

1005556010078 is a wasteful number, since it uses less digits than its factorization.

1005556010078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170954971.

The product of its (nonzero) digits is 42000, while the sum is 38.

The spelling of 1005556010078 in words is "one trillion, five billion, five hundred fifty-six million, ten thousand, seventy-eight".